1. Subsistence hunting. This is hunting for food, ie., in order to survive. It can also include hunting things that are eating your crops or your children.

2. Market hunting: This is hunting for money. It can be legal or illegal (poaching), and it can even be to collect a government provided bounty, but the motivation is cash.

3. Sport hunting. This is hunting because you enjoy the challenge and the chase. You may eat the animal afterwards, but the primary purpose is because you enjoy it.

The first two have resulted in the extinction and near extinction of countless animals.

The last one, sport hunting, has a track record of *INCREASING* the numbers of game animals. The reason for this apparent paradox is that sport hunters want to keep on doing what they like, and they will invest time and money into things like habitat protection to ensure that they continue to have animals to hunt.